亚洲在线中文成色综合网站亚洲在线成色综合网站色姑娘久久综合网天天外向型经济受困全球贸易逆风 韩国央行三年首次降息

We are responsible for global coordination of the Internet Protocol addressing systems, as well as the Autonomous System Numbers used for routing Internet traffic.

Currently there are two types of Internet Protocol (IP) addresses in active use: IP version 4 (IPv4) and IP version 6 (IPv6). IPv4 was initially deployed on 1 January 1983 and is still the most commonly used version. IPv4 addresses are 32-bit numbers often expressed as 4 octets in “dotted decimal” notation (for example, 192.0.2.53). Deployment of the IPv6 protocol began in 1999. IPv6 addresses are 128-bit numbers and are conventionally expressed using hexadecimal strings (for example, 2001:0db8:582:ae33::29).

Both IPv4 and IPv6 addresses are generally assigned in a hierarchical manner. Users are assigned IP addresses by Internet service providers (ISPs). ISPs obtain allocations of IP addresses from a local Internet registry (LIR) or National Internet Registry (NIR), or from their appropriate Regional Internet Registry (RIR):

發布時間︰

  虛心的接受了何愁有的尊皇主義課程教育,雲瑯過濾掉一些沒用的東西之後,收獲很大。   騎都尉因為空白文牒一事,已經讓皇帝很不高興了,要是再胡亂摻和進別人的事情中,一個多事的標簽,一定會被劉徹貼在雲瑯腦門上的。亚洲在线中文成色综合网站   雲瑯的目光越過那群哄搶金子的羌人,跟郭解的目光在半空相遇,滿意的笑了。亚洲在线成色综合网站   “這太偏頗了,也太過分了。就像你前些日子做的記錄,將人家何愁有寫成什麼了?自從我們認識何愁有到現在,我真的沒發現人家干了什麼過分的事情,你卻在何愁有的傳記里面堆砌了無數的惡毒辭藻,把人家罵的狗血淋頭,卻拿不出任何實際例證。通篇都是心證,充滿了听說,可能,也許,用這樣不確定的話語,如此寫的史書你覺得非常合適麼?” 色姑娘久久综合网天天   雲瑯在吃飯的時候鄭重的對曹襄道。
Map of RIRs
RegistryArea Covered
AFRINICAfrica Region
APNICAsia/Pacific Region
ARINCanada, USA, and some Caribbean Islands
LACNICLatin America and some Caribbean Islands
RIPE NCCEurope, the Middle East, and Central Asia

Our primary role for IP addresses is to allocate pools of unallocated addresses to the RIRs according to their needs as described by global policy and to document protocol assignments made by the IETF. When an RIR requires more IP addresses for allocation or assignment within its region, we make an additional allocation to the RIR. We do not make allocations directly to ISPs or end users except in specific circumstances, such as allocations of multicast addresses or other protocol specific needs.

IP Address Allocations

Internet Protocol Version 4 (IPv4)

Internet Protocol Version 6 (IPv6)

Autonomous System Number Allocations

Procedures

Regional Internet Registry Creation

Technical Documentation